Dab tsi yog thaj chaw uas cov iav fiber ntau tuaj yeem siv tau?
Iav fiber ntau composite bar, tseem hu ua GFRP bar, yog ib hom tshiab ntawm iav fiber reinforced bar, uas muaj zog tensile zog, shear zog, alkali thiab acid kuj, nplaim retardant thiab anti- zoo li qub, siab {{1} }}kev ua tau zoo, thiab tus nqi qis. Hloov chaw ntawm cov hlau zoo tib yam, nws tau txais tos los ntawm ntau tus neeg. Ntau qhov chaw uas siv steel tuav, iav fiber ntau yog siv. Kab lus no yuav qhia seb cov iav fiber ntau puas yog
Iav Fiber Reinforced Polymer Bars yog ua los ntawm alkali-dawb iav fiber ntau roving los yog siab- lub zog iav fiber rov qab nrog cov ntsiab lus alkali tsawg dua 1 feem pua thiab cov khoom siv matrix (epoxy resin, vinyl resin), curing agent thiab lwm yam ntaub ntawv, uas yog composited los ntawm molding thiab curing txheej txheem, hu ua GFRP tav. Nws yog ib hom tshiab ntawm cov khoom siv ntxiv dag zog. Ntawm lawv, iav fiber ntau yog cov khoom siv txhawb zog, uas muaj lub zog tensile siab thiab yog tus muab kev pabcuam tseem ceeb ntawm lub zog ntawm iav fiber reinforcement. Resin yog cov khoom siv hauv paus, uas muaj kev ua haujlwm ntawm kev sib txuas thiab xa cov quab yuam shear. xwm.
(1) Daim ntawv thov ntawm cov iav fiber ntau cov khoom siv dag zog txhawb nqa rau geotechnical engineering:
Geotechnical anchoring yog tsim nyob rau hauv tunnels, slopes, subways thiab lwm yam dej num, thiab steels siab tensile zog yog feem ntau siv raws li anchors rau anchoring. Txij li thaum xyoo 1990, cov khoom tsis yog-hlau bolts xws li iav fiber ntau cov kab sib txuas tau siv rau txawv teb chaws los hloov cov tsoos steel bolts. Cov iav fiber ntau sib xyaw muaj qhov zoo corrosion kuj nyob rau hauv ntev - lub sij hawm hnyav struts. Siv cov iav fiber ntau sib xyaw ua cov khoom thauj tog rau nkoj es tsis txhob siv cov hlau thauj tog rau nkoj tsis xav tau kev kho corrosion, muaj zog tensile siab, lub teeb yuag thiab yooj yim rau kev tsim, thauj thiab nruab. Tos ib pliag.
(2) Kev siv cov ntaub thaiv npog txiav pob zeb ua kom muaj zog:
Cov iav fiber ntau ntxiv cov tawb tuaj yeem siv los hloov cov tawb steel, uas yog siv rau hauv cov pob zeb ua vaj tse rau kev kho tsheb ciav hlau. Tsis tsuas yog cov kabmob muaj peev xwm ua tau raws li qhov yuav tsum tau ua, tab sis kuj vim tias cov iav fiber ntau cov pob zeb ua kom muaj zog muaj qhov zoo ntawm kev muaj peev xwm dhau los ntawm cov txheej txheem ntawm cov ntaub thaiv npog tunneling tshuab (TBMs). Nws tuaj yeem raug txiav, uas tshem tawm qhov kev xav tau ntawm cov neeg ua haujlwm nquag nkag mus thiab tawm ntawm qhov chaw ua haujlwm, yog li ua kom qhov kev tsim kho ceev thiab kev nyab xeeb.
(3) Daim ntawv thov ntawm fiberglass bar ETC tus thawj coj ntawm txoj kev:
Muaj kev poob ntawm cov ntaub ntawv tsheb khiav hauv txoj kab ETC uas twb muaj lawm. Txawm hais tias qhov kev txiav tawm rov ua dua, cuam tshuam los ntawm txoj kab uas nyob ib sab, rov xa cov ntaub ntawv hloov pauv hauv txoj kab thiab kev lag luam tsis ua haujlwm, kev siv cov khoom siv tsis yog - sib nqus thiab tsis yog - cov iav fiber ntau sib txuas los hloov cov hlau tuav. nyob rau hauv txoj kev pavement yuav alleviate no phenomenon.
(4) Daim ntawv thov ntawm GFRP rebars txuas ntxiv txuas ntxiv pob zeb ua pavement:
Continuous Reinforced Concrete Pavement (CRCP) muaj qhov zoo tseem ceeb xws li kev tsav tsheb yooj yim, muaj peev xwm ua tau zoo, ua haujlwm ntev, thiab kev saib xyuas yooj yim. Kev siv cov iav fiber reinforcement (GFRP) es tsis txhob siv cov hlau tuav hauv cov qauv pavement no tsis tsuas yog kov yeej cov hlau tuav. Txawm li cas los xij, qhov zoo ntawm cov pob zeb txuas ntxiv txuas ntxiv yog khaws cia, thiab kev ntxhov siab hauv cov qauv pavement tuaj yeem raug txo.
(5) Daim ntawv thov ntawm kev tiv thaiv -CI- iav fiber ntau cov kab sib txuas hauv lub caij nplooj zeeg thiab lub caij ntuj no:
Rau txoj kev sab qaum teb, vim muaj qhov tshwm sim ntawm txoj kev icing nyob rau lub caij ntuj no, salting thiab deicing yog ib qho ntawm cov nqi ntau dua - txoj kev siv tau zoo, thiab cov tshuaj chloride ions yog lub ntsiab culprit ntawm corrosion ntawm steel tuav hauv cov pob zeb ua vaj tse. Kev siv cov iav fiber ntau sib xyaw nrog cov kev tiv thaiv corrosion zoo heev es tsis txhob siv cov hlau tuav tuaj yeem ua rau lub neej ntawm pavement.
Cov saum toj no yog ib qho kev taw qhia rau kev siv cov teb ntawm iav fiber ntau. Pulwell tshwj xeeb hauv kev tsim cov iav fiber ntau, uas muag hauv tsev thiab txawv teb chaws. Txais tos tuaj xyuas peb lub Hoobkas!
